#include<stdio.h>
#include<stdlib.h>
#include<sys/types.h>
#include<unistd.h>
int main(){
        int x=1;
	pid_t p=fork();
	if(p<0){
	  perror("fork fail");
	  exit(1);
	}
	else if(p==0)
	  printf("Child has x= %d\n",++x);
	else
	  printf("Parent has x= %d\n",--x);
	return 0;
}

